Inzwa ye-automobile oksijini.
Inzwa ye-automobile oxygen inzwa yempendulo ebalulekile ohlelweni lwe-EFI Injini Yokulawula, futhi yingxenye ebalulekile ukulawula ukukhishwa kwe-ackopobetha yemoto, kunciphise ukungcoliswa kwezemvelo zemoto futhi uthuthukise ikhwalithi yokuvuselelwa kwamafutha yenjini yemoto.
Kunezinhlobo ezimbili zezinzwa ze-oxygen, i-zirconia ne-titonium dioxide.
I-OXYGEN Sensor ukusetshenziswa kwezinto ezibucayi ze-ceramic ukukala amandla oxygen ezihlangeni ezihlukene zokushisa noma amapayipi okuphekela phansi, ukuqinisekisa ukufakwa komoya okuvuthayo ngesiko lokulinganisa, ukuqiniseka okuphelele kuzo zonke izinhlobo zokuhlangana kwamalahle, ukuqunjelwa uwoyela, ukuhlanganiswa kwegesi kanye nokunye ukulawulwa komkhathi kanye nokunye ukulawulwa komkhathi nolunye uhlangothi lokulawula umnikelo.
Inzwa ye-oksijini isetshenziselwa ukulawula ngogesi uhlelo lokulawula impendulo yedivaysi yokujova uphethiloli ukuthola i-oxygen gcound kugesi ophelelwe umoya kanye nokuvumanisa izimpawu ze-air-fuel (14.7: 1) ukuhlanganiswa kwe-Injini.
Umgomo Wokusebenza
Inzwa ye-oksijini isebenza ngokufanayo nebhethri, nge-Element Zirconia enzwa esebenza njenge-electrolyte. Umgomo oyisisekelo wokusebenza yile: ngaphansi kwemibandela ethile (izinga lokushisa eliphakeme kanye neplatinamu catalysis), umehluko wokuhlushwa oxygen phakathi kwe-hao oxide esetshenziselwa ukukhiqiza umehluko ongaba khona, futhi kukhulu umehluko omkhulu. Okuqukethwe komoya-mpilo emkhathini kungu-21%, igesi yokuphelelwa yisikhathi ngemuva kokuqina okuhlanganisiwe empeleni ayiqukethe i-oksijini, igesi ephelelwe yisikhathi ekhiqizwa ngokuntuleka komlilo iqukethe umoya-mpilo osemphethweni.
Ngaphansi kwe-catalysis yamazinga okushisa aphezulu neplatinamu, umoya-mpilo unamathiselwe enzwa ye-oxygen, ngakho-ke umehluko we-voltage wenziwa, ukukhishwa kwamandla kagesi kukhiqizwa, ukukhishwa kwamandla kagesi kwengxube ehlanganisiwe kusondele ku-1v, futhi ingxube ye-dilute isondele ku-0V. Ngokusho kwesiginali kagesi we-sensor ye-oxygen, isilinganiso samafutha e-air-fuel silawulwa ukuze silungise ububanzi be-Fuel umjovo we-pulse, ngakho-ke ukulawulwa kwe-elekthronikhi kwenzwa ye-oxygen inzwa ebalulekile yokuzwakala komoya. Inzwa ye-oksijini kuphela ingabonakala ngokuphelele kumazinga okushisa aphezulu (ukuphela kufinyelela ngaphezu kwama-300 ° C) futhi kungakhipha amandla okuphuma. Iphendula ngokushesha kakhulu ekushintsheni kwengxube cishe ngo-800 ° C.
Amathiphu
Inzwa yomoya ye-zirconium dioxide oxygen ikhombisa ukuguqulwa kwengxube ehlanganayo ngokusebenzisa i-voltage, kanye ne-titanium dioxide oxygen sensor kukhombisa ukuguqulwa kwengxube evuthayo ngokusebenzisa ukumelana. Uhlelo lokulawula ngogesi olusebenzisa inzwa ye-zirconia oxygen alukwazi ukulawula isilinganiso sangempela somoya eduze kwesilinganiso se-theoretical air-fuel ratio lapho isimo sokusebenza kwe-enjini siwohloka, ngenkathi isimo se-titanium dioxide soulgen singalawula isimo sangempela somoya eduze kwesilinganiso se-theoretical soul-fuel ratio lapho isimo sokusebenza kwe-enjini siwohloka.
IVOLL YOKWENZA (ububanzi be-umjovo) elungiswe yiyunithi yokulawula ngesikhathi esifushane ngokuya ngesiginali se-Oxygen Sensor ibizwa ngokuthi ukulungiswa kwamafutha esifushane, okulawulwa yi-Voltage ye-Oult ye-Oxygen.
Ukulungiswa kwamafutha wesikhathi eside kunenani elinqunywe ukuguqulwa kweyunithi lokulawula kwesakhiwo sedatha yokulawula iyunithi yokusebenza ngokuya ngokuguqulwa kwe-coccieffection yesikhathi esifushane.
Iphutha elijwayelekile
Lapho nje inzwa ye-oksijini yehluleka, ikhompyutha yohlelo lokujova kagesi ngogesi ayikwazi ukuthola imininingwane yokuhlushwa komoya-mpilo endaweni yokusebenza komoya, ngakho-ke ayikwazi ukukhulisa ukusetshenziswa kwamafutha enjini, okuzokwengeza isivinini sezenzi, ukuntuleka komlilo, ukuhlinzwa kanye nezinye izindiza ezinephutha. Ngakho-ke, iphutha kufanele lisuswe noma lifakwe esikhundleni ngesikhathi [1].
Iphutha lobuthi
Ubuthi bezinzwa ze-oksijini bukhona futhi bunzima ukuvimba ukwehluleka, ikakhulukazi ukusetshenziswa okujwayelekile kwezimoto eziholwa nguphethiloli, ngisho nensor entsha yo-oxygen, ingasebenza kuphela amakhilomitha ayizinkulungwane ezimbalwa. Uma kungubuthi bokuhola obuncane kuphela, bese usebenzisa ithangi likaphethiloli ongenamahhala ungasusa ukuhola ebusweni bezinzwa ze-oxygen bese uyibuyisela ekusebenzeni okujwayelekile. Kodwa-ke, kaningi ngenxa yokushisa okuphezulu okuphumayo, kuholele ekulweni kwangaphakathi kwalo, kuvimbela ukuguquguquka kwama-oksijini, okwenza izinzwa ze-oksijini azisebenzi, ngasiphi isikhathi.
Ngaphezu kwalokho, ubuthi be-silicon bakwa-oxygen izinzwa ze-oxygen nakho kuyinto evamile. Ngokuvamile, i-Silica yakhiqizwa ngemuva kokuhlanganiswa kwamakhompiyutha e-silicon aqukethe uphethiloli kanye nowoyela wokuthambisa, kanye negesi ye-silicone ekhishwe ngokusetshenziswa okungafanele kwe-silicone Rubber sealing sealing sealing, kufanele kusetshenziswe uwoyela we-oxygen kanye nokuthambisa amafutha.
Lapho kulungiswa, kuyadingeka ukuthi ukhethe kahle futhi ufake ama-gaskets enjoloba, ungasebenzisi ama-solvents kanye nama-anti-stick agents ngaphandle kwaleyo ebekwe ngaphakathi komoya oxygen, okuzovimba noma kuvinjelwe umoya ongaphandle ungene ngaphakathi kwenzwa ye-oxygen, ukuze Isiginali yokuphuma yenzwa ye-oksijini ayilungile. I-ECU ayikwazi ukulungisa isilinganiso samafutha e-air-wesikhathi ngesikhathi. Ukukhiqizwa kwamadiphozi ekhanni kubonakaliswa ikakhulukazi njengokukhuphuka kokusetshenziswa kukaphethiloli kanye nokwanda okukhulu kokuhlushwa. Ngalesi sikhathi, uma ukusulwa kususwa, kuzobuyela emsebenzini ojwayelekile.
Ukuqhekeka kwe-Ceramic
I-ceramic yenzwa ye-oxygen inzima futhi i-brittle, futhi ingqongqoza ngezinto ezinzima noma ukushaya nge-airflow eqinile ingakuqeda amandla futhi yehluleke. Ngakho-ke, kuyadingeka ukuqaphela ikakhulukazi lapho ubhekene nezinkinga bese ubeka esikhundleni sabo ngesikhathi.
I-block intambo iyashiswa
Intambo yokumelana ne-heater iyashiswa. Ngezinzwa ze-oxygen ezifudumele, uma ucingo lokumelana ne-heater lishisiwe, kunzima ukwenza inzwa ukuthi ifinyelele ekushiseni okujwayelekile kokusebenza futhi ilahlekelwe ukusebenza kwayo.
Ukunqanyulwa komugqa
Umjikelezo wangaphakathi wenzwa ye-oxygen uyanqanyulwa.
Indlela Yokuhlola
Isheke lokumelana ne-heater
Susa ipulaki le-sensor ye-harness ye-oksijini, bese usebenzisa i-multimeter ukukala ukumelana phakathi kwe-heater pole ne-iron pole esigungwini senzwa ye-oxygen sensor terminal. Inani lokumelana ngu-4-40ω (bheka imiyalo yemodeli ethile). Uma kungahlangabezani nemvelo, buyisela inzwa ye-oxygen.
Ukukalwa kwe-APERVEBACK VOLTAGE
Lapho ukala i-Percebback Voltage yenzwa ye-oxygen, ipulagi ye-Harness yenzwa ye-oxygen kufanele ikhishwe, bese uthayipha i-wire terminal ye-Punduction Voltage ye-Pikelezwa ye-Oxygen yomodeli, bese ixhunywe kwi-harness plug. I-Pereceback Vertage ingalinganiswa kusuka kulayini wokuhola ngesikhathi sokusebenza kwenjini (Amanye amamodeli angalinganisa futhi voltage voltage yenzwa ye-oxygen kusuka kusokhethi lokutholwa kwephutha). Isibonelo, uchungechunge lwezimoto ezikhiqizwe yiToyota Motor Company lungalinganisa i-voltage ye-afundwayo yenzwa ye-oxygen ngqo kusuka ku-Ox1 noma ama-OX2 ama-terminals kusokhethi lokutholwa kwamaphutha).
Lapho ulinganisa i-voltage ye-Repeccess sensor ye-oksijini, kungcono ukusebenzisa i-pointer yohlobo lwe-multimeter enebanga eliphansi (imvamisa i-2V) kanye nokuvinjwa okuphezulu (ukumelana kwangaphakathi kukhulu kune-10MMO). Izindlela ezithile zokutholwa zinjengokulandelayo:
1. Vula injini eshise ukushisa okujwayelekile kokusebenza (noma isebenze ngo-2500r / min ngemuva kokuqala i-2min);
2. Xhuma ipeni elibi le-multimeter voltage Stop ku-E1 noma i-Electrode engemihle yebhethri kwisokhethi lokutholwa kwephutha, kanye nepeni elihle kusokhethi we-OX1 noma i-OX2 E-wiring harness plug yenzwa ye-oxygen.
3, vumela injini iqhubeke isebenza ngejubane elingaba ngu-2500r / min, bese ubheka ukuthi i-voltmeter pointer ingashintsha emuva naphakathi kuka-0-1-1 Ngaphansi kwezimo ezijwayelekile, ngenqubekela phambili yokulawulwa kwempendulo, i-voltage impendulo yenzwa ye-oxygen izoshintsha ngenhla nangaphansi kwe-0.45v, futhi i-voltage yempendulo kufanele ishintshe isikhathi esingaphansi kwezikhathi eziyi-10.
Uma kungaphansi kwezikhathi eziyi-8, kusho ukuthi inzwa ye-oksijini noma uhlelo lokulawula impendulo alusebenzi kahle, olungabangelwa ukunqwabelana kwekhabhoni ebusweni bezinzwa ze-oxygen, ukuze ukuzwela kuncishisiwe. Kuze kube manje, injini kufanele iqhutshwe ngo-2500r / min imizuzu engaba ngu-2 ukususa amadiphozi ekhabhoni ebusweni bezinzwa ze-oxygen, bese uhlola i-voltage yempendulo. Uma i-pointer ye-voltmeter isashintsha kancane ngemuva kokuthi ikhabhoni ingasuswa, kukhombisa ukuthi inzwa ye-oxygen yonakele, noma umjikelezo wokulawula impendulo yekhompyutha unephutha.
I-4, i-oxygen sensor ebukeka imibala yombala
Susa inzwa ye-oxygen kusuka epayipi eliphelelwe amandla bese ubheka ukuthi umgodi wokuzwakala ezindlini zenzwa uvinjiwe kanti umnyombo we-ceramic ulimele. Uma kulimele, buyisela inzwa ye-oxygen.
Amaphutha anganqunywa ngokubheka umbala wengxenye ephezulu yenzwa ye-oxygen:
1, Phezulu okumpunga okukhanyayo: Lona umbala ojwayelekile wenzwa ye-oxygen;
2, Okumhlophe Okumhlophe: Kubangelwa ukungcoliswa kweSilico, inzwa ye-oksijini kumele ithathelwe indawo ngalesi sikhathi;
3, nsundu phezulu (njengoba kukhonjisiwe kuMdwebo 1): Kubangelwa ukungcoliswa kokuhola, uma kungathi sína, kufanele futhi ungene esikhundleni senzwa ye-oxygen;
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UZhuo Meng Shanghai Auto Co, Ltd.uzibophezele ekuthengiseni i-MG & Mauxs auto izingxenye ze-autoukuthenga.
